KNOXVILLE (AP) — University of Tennessee system trustees have approved tuition increases that raise annual student costs by $774, or 12 percent, at the flagship campus in Knoxville; by $508, or 10 percent at the Martin campus; and by $488, or 10 percent in Chattanooga.The tuition increase for the budget year that starts July 1 generates about $53 million and helps support a $1.86 billion budget that spends about $52 million, or 3 percent, less than this year.The budget, approved without dissent on a voice vote, includes $38 million to increase salaries by up to 5 percent.• • • • •MURFREESBORO (AP) — Rutherford County leaders approved tax breaks for two automotive supply companies that are adding new jobs in LaVergne.The county Industrial Development Board has approved the tax breaks for Tottser-Iroquois Industries for an automotive supply operation that will open within a year and Nacarato Volvo & GMC Trucks to sell and service heavy duty trucks.